Improvement in shedding and pattern mechanisms for looms



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Shedding and Pattern Mechanisms for Looms. N0.158,362. Paten tedlan.5,lfl 75.

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G. CBUMPTUN 8'. H. WYMAN. Shedding and Pattern Mechanisms for Looms. No.158,362. PatentedJan.5,l875.

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TUNITED l STATES PATENT @rrron.

GEORGE GROMPTON AND HORACE WYMAN, OF WORCESTER, MASS. H

IMPROVEMENT IN SHEDDING AND PATTERN MECHANISMS FOR LOOMS.

Specification forming part of Letters Patent No. 158,362, dated January5, 1875; application filed November 16, 1874.

To all whom it may concern:

Be it known that we, GEORGE CROMPTON and HORACE WYMAN, both of the cityand county of Worcester and State of Massachusetts, have inventedImprovements in Harness-Operating and Pattern Mechanism for Fancy Looms,of which the following is a specilication:

Letters Patent of the United States, No. 141,765, August 12, 1873, shownotched jacks connected with harness-frames, and operated by means ofhorizontally-reciprocating lifter, depresser, and evener, and in thispresent instance of our invention the corresponding parts are the sameas in the patent referred to, and this invention differs from that inthe construction and operation of the pattern mechanism.

The object of this invention is to quickly change the pattern, beingwoven through the operation of two or more independent cylinders orchains, either of which may be thrown into operative position withrelation to the notched jacks, and these cylinders may be reversed, ifdesired, to reverse the pattern. bemg woven.

The pattern-cylinders, supported'in a movable frame, have attached totheir shafts clutches actuated by toothed wheels, and the movement ofthe movable frame causes these toothed Wheels to move so as to engagethe one or the other of these clutches, actuated, as hereinafterdescribed, so as to turn the pattern-cylinder to such a point that, whenin operative position, the row of pins or projections designed toindicate the pattern previously used will be in proper position.

Figure 1 represents a lei'thand side elevation ofv that portion of aloom containing our invention; Fig. 2, an opposite side elevation, andFig. 3 is a View of thepattern mechanism removed from the frame. Fig. 4is also a left hand side elevation, but with the movable frame in suchposition that the pattern-cylinder D is in operative position instead ofthe cylinder D, as shown in Fig. l.

The frame A of the machine is of ordinary or suitable construction,having the crank or lay shaft B, supported in proper bearings, andconnected through crank-wheel O and links 0, and lever G with theconnectinglink 0 to operate the rocker 0 connected through links 0 and(l with elevator, depresser, and evener bars. The notched jacks O areconnected a usual with, and are reciproeated horizontally to raise andlower, the harnessframes. On crank-shaft B is a sleeve, B adapted torotate with, and also to slide 1 longitudinally on, the shaft, theconnection being made through a spline. This sleeeve has attached to itpin-wheels B 13 or toothed wheels adapted to engage, when desired, anotched or crown wheel, B, on a shaft, B supported in bearings attachedto the 100mframe. The sleeve B has a central annular groove to receive aforked piece, a, having a slot, a, (see Fig. 1,) to receive a pinprojecting from the crank-like end of a shaft, a moved by a handle, aand held in position by a spring, ed, that bears on the cam a at tachedto shaft c By means of this handle a and shaft a the sleeve may be movedlaterally on its shaft, so as to engage wheels B or B with thecrown-wheel B to rotate shaft B in either desired direct-ion. At'theupper end of shaft 13 is a bevel-pinion, I), (see Fig. 3,) that engagesa bevel-pinion, b adapted to turn freely on the shaft 0 that supportsthe movable frame c of the pattern mechanism. The sleeve or hub of thisbevel-pinion b has a spline, and attached to it through this spline aretwo toothed wheels, I) b, that engage other toothed wheels. The toothedwheel b engages a wheel, 11 provided with clutch-teeth, and turningloosely on the end of shaft 0 carrying one of the pattern-cylindersmarked 1), and wheel I) engages a similar toothed wheel, b turningloosely on shaft 0 of pattern-cylinder D. Connected by a spline, and soas to turn with and slide on these shafts c 0 are clutch -boxes 0 c thatare moved to engage or free the wheels 12 or If, so that the rotation ofthe wheels b and b will move only one of the pattern-cylinders D or I)and their shafts c c.

The moving frame of the pattern-cylinders is supported by shaft a,resting in bearings on the frame A, and has boxes or bearings for theshafts c c of the pattern-cylinders D I), and these shafts c 0 besideshaving the clutchboxes and toothed wheels before mentioned, have alsohand-wheels (Z. The moving frame 0 has also a handle, d for turning theframe, so that the pattern-cylinder D or D will be in operative positionunder the jacks of the harness mechanism.

We will here state that we do not limit our selves to any particularkind of jacks and harness connections with which our novel patternmechanism may be used, as it may be used with many of the well-knownjacks; and we do not limit ourselves to the use of a pattern-cylinderwith projecting pins,as shown, for any other wellknownpattern-indicating cylinder, barrel, or chain may be employed with goodresults. This handle 61 has a catchpiece, 61 pivoted to it, and thrownby a spring so as to engage notches in the holders (1 d to hold theframe 0 in adjusted position. This frame 0 also carries shafts 0 cprovided with handles 0 and connected with brakes e bearing on theperipheries of the hand-wheels of the pattern-cylinders D D. Thesehandles and brakes are held by springs (see Fig. 1) so that the brakeshold the shafts c" c of the pattern-cylinders from turning when notpositively moved, and in their normal position arms 0 a, at the oppositeends of shafts e 0 occupy the position shown in Fig. 2. These arms 0have their top faces 0 (see Fig. 3) beveled, so that, when desired, theymay be moved through shafts c or c to act on levers c at their upperends, and turn them, and through them disengage their connected clutchesc c from wheels 11 I), when it is desired to turn the pattern-cylindersD or D independently through hand-wheels d to bring any desired row ofpins on the cylinders in operative position under the jacks. Theselevers c are, however, usually turned automatically, in order to engageor free the clutches from the toothed wheels, and this is accomplishedas the moving frame 0 is moved to change the position of the cylinders.Each lever has attached to it a spring, the tendency of which is to keepthe clutches engaged; but, when a cylinder is moved from its operativeposition the lever 0 holding its clutch engaged, strikes, just as theother cylinder comes in operative position, an inclined piece, f, whichmoves such lever and disengages the clutch of the cylinder thrown out ofaction. These inclined pieces f are attached to the 10omframe, beingplaced in proper position to unclutch the clutches at the proper momentin their movement.

We do not desire to limit ourselves to any particular number of patterncylinders or shafts, as more than two may be used. The boxes supportingthe shafts of the cylinders are divided, so that the shafts andcylinders may be easily removed for the placement of new cylinders withany desired number of rows of pins or of patterns, and the relativesizes of the toothed wheels may be changed so as to move thepattern-cylinder to use each row of pins, or to skip from one row to asecond or third row.

This invention is specially adapted to the weaving of shawls and fancygoods having a variety of patterns, a portion of the figure being set upor indicated on one, and a portion on the other, pattern-cylinder, sothat when the cylinders are changed through the movable frame thedesired pattern will be produced, and in this way the capacity of theloom for weaving complicated patterns is greatly enlarged. Thepattern-cylinders may also have two or more patterns set up on them, andthen the cylind ers will be moved through the toothed wheels two or moresteps at one movement, to bring the pins of each pattern successivelyand properly under the jacks. By moving the sleeve B the shaft B may bemoved in either direction; and this is desirable in many cases, as, forinstance, while the shaft and patterncylinder move inone direction acertain pattern is made, and if it is then desired to reverse the orderof shedding to make the other half of the figure, which may be a diamondor other figure, then the reversal of the movement of the shaft throughthe reversal of the sleeve 13 changes or reverses the figure. WVhen thecrown-wheel at the lower end of the shaft B is not engaged with thepin-wheels on the clutch, then the pattern mechanism maybe changed orreversed, and the frame 0 be moved freely. In this instance of ourinvention the pattern-cylinder D (see Fig. 3) is uppermost. (See Fig.2.) The cylinder D has two patterns set up on it, and the toothed wheelI) engages and moves the wheel 5 of the pattern-cylinder D, so as toskip a row of pins at each movement. One pattern may be designated byrows of pins 1, and the other by rows of pins 2, and then suppose theoperator is weaving with pattern 1, then the cylinder is moved to bringthe rows marked 1 under the jacks, and skip the rows 2. Now, we willsuppose row 1 to be in use, the parts being as shown in Fig. 2, and thejacks being supposed to lie in the line mm, Fig. 3. In this position theclutch c is engaged, and the clutch 0 is disengaged, and as long as theloom runs pins 1 l 1 will come under the jacks. Now, if it were desiredto use pattern 2 2, the operator would, through handle c shaft 6, andarm 6 move lever e unclutch the clutch c and, by means of the handwheelof, turn the shaft 0 so that rows of pins 2 would come under the jacks,then the continued movement of the cylinder would weave the patternindicated by such pins, and it is evident that three orfour rows of pinscould be so employed. Now, suppose rows of pins 1 to be in operation,and it is desired to produce a pattern indicated or set up on thepatterncylinder D, having connected with its shaft, but nnelutched, thetoothed wheel 6 Now, change the position of the movable frame throughits handle (1 and bring pattern-cylinder D in operative position. Duringthis operation the wheels I) 12 move over their engaged wheels 12 b theend of the lever 0 that operates the clutch of 0 leaving the inclinedpiece f, allowing the clutch to engage its half on wheel I) ofpattern-cylinder D, thereby changing of the pattern is insured.

clutching with it, and as the extent of movement of these wheels b 11 inconnection with eachother, is just the same when theclutch is to bedisengaged or engaged, it follows that each cylinder will, when engaged,be brought back into engagement, so as to occupy the same position thatit occupied when it was disengaged, and this insures that the samepattern will be repeated by the two cylinders when simply changed inposition. Were not this correct placement of the cylinders insured, thenthe operator would be obliged to carefully read the pins on the cylinderto see if the proper line of pins were in position before commencin g toweave after a change of cylinder; but by our arrangement of parts thiscorrect As this frame 0 moves from its position, (shown in Fig. 2,) tobring cylinder D in position, wheel 1) travels over I), and end of leverc" strikes an inclined stop, f, provided for it, and disengages theclutch a? just as the cylinder D comes into operative position. In thisinstance of our invention, patterneylinder D is set up with pins for onepattern, and it moves one row at a time, but it might contain two ormore patterns. When a pattern-cylinder is in operative position, it ismoved step by step through the toothed wheels and the bevelwhcels andshaft B Having described our invention, we claim- 1. The combination,with a movable frame and two or more pattern cylinders or indica-' 2.The combination, with a movable frame and two or more pattern cylindersor indicators, of clutch-boxes, toothed wheels, levers, and inclines,whereby the clutches may be engaged and disengaged automatically by mov'ing the pattern-cylinder carrying-frame, as and for the" purposes setforth.

3. The combination of the shaft 6 and arm 0 0 with lever 6 and clutchand pattern-cylinder for disengaging the clutch to move thepattern-cylinder without turning the operating toothed wheel or otherpart of the loom, as and for the purpose set forth.

, at. The crank-shaft, the sleeve B the pin or toothed Wheels B E thecrown-wheel, the shaft 13 and bevel-pinions, combined with the toothedwheels and pattern-cylinders, carried in a movable frame, substantiallyas described. In testimony whereof we have signed our names to thisspecification in the presence of two subscribing witnesses.

GEO. GROMPTON. HORAGE WVYMAN.

Witnesses:

J. A. WARE, J. B. SYME.

